<script setup lang="ts">
import type { RoleDetail, RoleDetailData, RoleParams } from '@/types/system';
import { createRoleUserAPI, getParkSysDataAPI, GetParkSysPermissionAllTreeAPI, getRoleDetailAPI, updateRoleUserAPI } from '@/utils/system';
import { ElMessage, type FormInstance, type FormRules } from 'element-plus';
import { tr } from 'element-plus/es/locales.mjs';
import type { TreeInstance } from 'element-plus/lib/components/index.js';
import { ref } from 'vue';
import { useRoute, useRouter } from 'vue-router';


const disabledTreeRefs = ref<TreeInstance[]>([])
const treeRefs = ref<TreeInstance[]>([]);
// 当前激活的步骤
const activeStep = ref(1)

// 上一步

const prevStep = () =>{
  activeStep.value --
}

// 下一步
const nextStep =  async() =>{
  try{
      // 1.统一表单校验
      if(activeStep.value === 1 ) {
        // 表单校验
        await roleFormRef.value?.validate()
        // 没问题进入下一步
        activeStep.value ++
      }
      else if(activeStep.value === 2){
        // 2.遍历树形组件，获取所有选中的节点的key值
        // 先初始化空数组
        roleForm.value.perms = []
        // 遍历树形组件，获取所有选中的节点的key值
        treeRefs.value.forEach((tree: TreeInstance ,index: number)=>{
          // 获取当前树形组件选中的节点的key值
          const arrKeys = tree.getCheckedKeys() as number[]
          // 追加到分布表单数据组中
          roleForm.value.perms.push(arrKeys)
        })

        // 把数组扁平话，再判断长度
        if(roleForm.value.perms.flat().length === 0){
          ElMessage.warning('请至少选中一个权限')
          return
        }else{
          // 没问题进入下一步
          activeStep.value ++
          // 表单3回显数据
          disabledTreeRefs.value.forEach((tree: TreeInstance ,index: number)=>{
           tree.setCheckedKeys(roleForm.value.perms[index])
          })
        }
      }
  }catch(error){
    console.log(error)
  }
  
}



// 表单信息
const roleForm = ref<RoleParams>({
  roleName: '',
  remark: '',
  perms: [],
})


//表单校验规则
const roleRules = ref<FormRules<RoleDetail>>({
  roleName: [{ required: true, message: '请输入角色名称', trigger: 'blur' }],
  remark: [{ required: true, message: '请输入角色描述', trigger: 'blur' }]
})

// 表单ref
const roleFormRef = ref<FormInstance>()


// 获取权限功能列表
const treeList = ref<RoleDetailData[]>([])

// 获取功能权限列表
const getTreeList = async()=>{
  const res = await GetParkSysPermissionAllTreeAPI()
  console.log('获取功能权限列表',res);
  treeList.value = res.data
}

getTreeList()

// 添加角色
const router = useRouter()

const onSubmit = async()=>{
  // 获取角色id
  const roleId = route.params.id
  // 有id为修改，否则为添加
  if(roleId){
    const res = await updateRoleUserAPI({
      ...roleForm.value,
      roleId: Number(roleId)
    })
  }else{
    // 添加业务
    const res = await createRoleUserAPI(roleForm.value)
  }
  ElMessage.success( roleId ? '修改角色成功' : '添加角色成功')
  router.back()
}


const route = useRoute()
// 获取角色详情
const getRoleDetail = async()=>{
  if(route.params.id){
    const res = await getParkSysDataAPI(Number(route.params.id))
    console.log('获取角色详情',res);
    const {roleName,remark,perms} = res.data
    roleForm.value = {roleName,remark,perms}
  }
}

getRoleDetail()

</script>

<template>
  <div class="add-role">
    <header class="add-header">
      <el-page-header :content=" route.params.id ? '编辑角色' : '添加角色' " @back="$router.back()" />
    </header>
    <main class="add-main">
      <div class="step-container">
        <el-steps direction="vertical" :active="activeStep">
          <el-step title="角色信息" />
          <el-step title="权限信息" />
          <el-step title="检查并完成" />
        </el-steps>
      </div>
      <div class="form-container" v-show="activeStep === 1 ">
          <div class="title">角色信息</div>
             <div class="form">
            <el-form ref="roleFormRef" class="form-box" :model="roleForm" :rules="roleRules">
              <el-form-item label="角色名称：" prop="roleName" >
                <el-input v-model="roleForm.roleName" placeholder="请输入角色名称"  />
              </el-form-item>
              <el-form-item label="角色描述：" prop="remark" >
                <el-input v-model="roleForm.remark" type="textarea" placeholder="请输入角色描述" />
              </el-form-item>
            </el-form>
        </div>
      </div>
      <div class="form-container" v-show="activeStep === 2 ">
        <div class="title">权限配置</div>
        <div class="form">
          <div class="tree-wrapper">
          <div v-for="(item,index) in treeList" :key="item.id" class="tree-item">
            <div class="tree-title">{{ item.title }}</div>
            <el-tree 
              :data="item.children" 
              show-checkbox 
              default-expand-all 
              node-key="id"
              :props="{ label: 'title' }" 
              ref="treeRefs" 
              :default-checked-keys="roleForm.perms[index]"
            />
      </div>
    </div>
        </div>
      </div>
      <div class="form-container" v-show="activeStep === 3 " >
        <div class="title">检查并完成</div>
        <div class="form">
        <div class="info">
        <div class="form-item">角色名称：{{ roleForm.roleName }}</div>
        <div class="form-item">角色描述：{{ roleForm.remark }}</div>
        <div class="form-item">角色权限：</div>
        <div class="tree-wrapper">
          <div v-for="item in treeList" :key="item.id" class="tree-item">
            <div class="tree-title">{{ item.title }}</div>
            <el-tree
              :data="item.children"
              show-checkbox
              default-expand-all
              node-key="id"
              :props="{ label: 'title', disabled: () => true }"
              ref="disabledTreeRefs"
            />
          </div>
        </div>
      </div>
        </div>
      </div>
    </main>
    <footer class="add-footer">
      <div class="btn-container">
        <el-button @click="prevStep" v-if="activeStep > 1">上一步</el-button>
        <el-button @click="nextStep" type="primary"  v-if="activeStep < 3" >下一步</el-button>
        <el-button v-if="activeStep === 3" @click="onSubmit()" type="primary">确认添加</el-button>
      </div>
    </footer>
  </div>
</template>


<style scoped lang="scss">
.add-role {
  background-color: #f4f6f8;
  height: 100vh;

  .add-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    height: 64px;
    line-height: 64px;
    font-size: 16px;
    font-weight: bold;
    background-color: #fff;

    .left {
      span {
        margin-right: 4px;
      }

      .arrow {
        cursor: pointer;
      }
    }

    .right {
      text-align: right;
    }
  }

  .add-main {
    position: fixed;
    top: 64px;
    bottom: 88px;
    width: 100%;
    overflow-y: auto;
    background: #f4f6f8;
    padding: 20px 30px;
    display: flex;

    .step-container {
      height: 400px;
      width: 200px;
    }

    .form-container {
      flex: 1;
      background-color: #fff;
      overflow-y: auto;

      .title {
        height: 60px;
        line-height: 60px;
        padding-left: 20px;
      }

      .form {
        margin-bottom: 20px;
        padding: 20px 65px 24px;

        .el-form {
          display: flex;
          flex-wrap: wrap;
        }

        .info {
          font-size: 14px;
          color: #666;

          .form-item {
            margin-bottom: 20px;
          }
        }
      }

      .form-box {
        width: 600px;
        display: flex;
        flex-direction: column;
      }
    }
  }

  .add-footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    padding: 24px 50px;
    color: #000000d9;
    font-size: 14px;
    background: #fff;
    text-align: center;
    z-index: 10001;
  }

  .tree-wrapper {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;

    .tree-item {
      flex: 1;
      padding: 0px 4px;
      text-align: center;

      .tree-title {
        background: #f5f7fa;
        text-align: center;
        padding: 10px 0;
        margin-bottom: 12px;
      }
    }
  }
}
</style>